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/* NRDF D1797 Data No.1 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,1;
D#=D1797;
TITLE=/Isobaric analog state of 14Be/;
PURPOSE=/To measure the Isobaric Analog State (IAS) of the
neutron-dripline nucleus 14Be for the first time in a
charge-exchange reactino 14Be(p,n)14B* in inverse kinematics
at E(14Be) = 74 AMeV./;
ATH=(S.TAKEUCHI'1', S.SHIMOURA'2', T.MOTOBAYASHI'1', H.AKIYOSHI'3',
Y.ANDO'1', N.AOI'4', ZS.FULOP'5', T.GOMI'1', Y.HIGURASHI'1',
M.HIRAI'6', N.IWASA'7', H.IWASAKI'2', Y.IWATA'6',
H.KOBAYASHI'1', M.KUROKAWA'2', Z.LIU'8', T.MINEMURA'3',
S.OZAWA'3', H.SAKURAI'4', M.SERATA'1', T.TERANISHI'2',
K.YAMADA'1', Y.YANAGISAWA'3', M.ISHIHARA'3');
INST-ATH=(2JPNYOK'1', 2JPNTOK'2', 2JPNIPC'3', 2JPNTOK'4', 3HUNDEB'5',
2JPNIRS'6', 2JPNTOH'7', 3CPRIMP'8');
/* '1' Department of Physics */
/* '2' Center for Nuclear Study (CNS) */
/* '4' Department of Physics */
/* '7' Department of Physics */
REF=PL/B;
VLP=515(2001)255;
RCTS=(P(14BE,14B)N, D(14BE,14B)X);
PHQS=(ENGY-SPEC, ANGL-DSTRN, X'9', X'10', COULOMB-DISP-ENGY'11');
/* '9' Energy and width of the peak of the decay energy spectra of
the 12Be + p + n channel for the (p,n) reaction */
/* '10' Excitation energy of the IAS */
/* '11' Coulomb displacement energy for the pair of 14Be and its
IAS. */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,1;
/* 2003-07-09 : Compiled */
ENR=X%;
PHYS-FORM=SLD;
BAC=X;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=(CYC'12',PRJFS'13');
/* '12' Primary beam of 100 AMeV 18O on a 1110 mg/cm**2 thic 9Be
target */
/* '13' Secondary beam of 14Be selected by the RIKEN Projectile
Fragment Separator (RIPS) [T.Kubo et al., Nucl. Instrum. Methods
B70(1992)309]. */
INST-ACC=(2JPNIPC'12',2JPNIPC'13');
INC-ENGY-LAB=74MEV/A;
ERS-PRJ=8MEV/A;
BEAM-INTNSTY=1e4PPS'14';
/* '14' Typical intensity of the 14Be beam with a purity of
around 80% */
POL-PRJ=0%;
DET-PARTCL=(P,N,12BE);
COINC=(P,N,12BE);
ANT-COINC=NO;
DET-SYS=(PLST-SCT'15',TOF'16');
/* '15' To detect decay particles from 14B*. Resolutions of TOF
were about 1.2% (FWHM) for charged particles and about
1.5%(FWHM) for neutrons at the energies of 74 AMeV. */
/* '16' To determine velocities of the decay particles */
ERS-DET=0.15MEV'17';
/* '17' Resolution of decay energy at 0.3 MeV */
/* Experimental Method:
- Time-of-flight (To determine velocities of the decay particles)
/* Analysis:
- Invariant mass method
RCT=P(14BE,14B)N;
PHQ=ENGY-SPEC;
CHM=CH2'18';
/* '18' (CH2)n and C target are used, C target was used to
subtract the contributions of carbon nuclei in the (CH2)n
target. */
THK-TGT=XMG/CM**2'19';
/* '19' 187 and 152 mg/cm2 for (CH2)n and C target, respectively.
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,1;
INC-ENGY-LAB=74MEV/A;
SYS-ERR=10%'20';
/* '20' Uncertainties for corrected and uncorrected spectra due
to neutron detection efficiency and the reaction losses of the
charged particles in hodoscope. */
EMT-1=12BE;
RSD=N;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
EXC-ENGY-EMT'21' DATA1'22' DSIGMA/DE DELTA-DSIGMA/DE'23'
DATA2'24' DELTA-DATA2'24' FLAG'25'
(MEV) (MEV) (MB/MEV) (MB/MEV) (MB/MEV) (MB/MEV) (NODIM)
16.770 0.000 0.000 +-X 0.000 +-X 1
16.845 0.075 -0.442 +-0.442 -0.023 +-0.023 2
16.895 0.125 0.627 +-0.362 0.058 +-0.034 X
16.945 0.175 0.432 +-0.350 0.056 +-0.045 X
16.995 0.225 1.578 +-0.498 0.267 +-0.084 X
17.045 0.275 2.208 +-0.522 0.459 +-0.109 X
17.095 0.325 1.417 +-0.404 0.342 +-0.097 X
17.170 0.400 0.862 +-0.208 0.238 +-0.057 X
17.270 0.500 0.368 +-0.118 0.116 +-0.037 X
17.370 0.600 0.276 +-0.099 0.096 +-0.034 X
17.495 0.725 0.316 +-0.080 0.116 +-0.029 X
17.645 0.875 0.273 +-0.079 0.102 +-0.030 X
17.820 1.050 0.256 +-0.075 0.094 +-0.027 X
18.020 1.250 0.244 +-0.077 0.084 +-0.027 X
18.220 1.450 0.429 +-0.093 0.134 +-0.029 X
18.445 1.675 0.474 +-0.107 0.127 +-0.029 X
18.695 1.925 0.434 +-0.134 0.101 +-0.030 X
18.970 2.200 0.611 +-0.141 0.114 +-0.026 X
19.270 2.500 0.658 +-0.153 0.097 +-0.022 X
19.595 2.825 0.847 +-0.179 0.097 +-0.021 X
\END;
/*===================================================================*/
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